Methoxymelonal

What Methoxymelonal smells like

Methoxy melonal (6-methoxy-2,6-dimethylheptanal, sold as Aquaflor) is better described as ozonic and watery than as melon. Bedoukian's description is strong, diffusive, ozonic, muguet-like, watery and marine, with a hint of fruit; another supplier lists floral, fruity, citrus, melon and green. Few independent descriptions exist, and it is often confused with Melonal, so its profile rests on a small number of supplier entries.

Leading note

Watery ozone

Clear facets

Muguet-like floral

Supporting facets

Marine

Faint facets

Melon, citrus

Character

Watery, diffusive, fresh, clean

• melon
• watery
• ozonic
• floral

What makes Methoxymelonal distinctive

Despite its name it is an ozonic floral rather than a melon: watery, marine and lily-of-the-valley-like, with fruit only in the background — the opposite balance to Melonal.

Where the descriptions disagree: One supplier lists melon and citrus among its notes; Bedoukian names only a hint of fruit.

How Methoxymelonal is used

Used for diffusive watery, ozonic and fresh floral effects in aquatic and fresh compositions.

Typical role: modifier (used in small amounts to change the character of a blend).

How Methoxymelonal differs from similar materials

Melonal

Melonal is clearly green melon and cucumber; methoxy melonal is ozonic, watery and muguet-like, with only a hint of fruit.

Floralozone

Floralozone is a neutral fresh-air and ocean-breeze note; methoxy melonal is more distinctly floral, muguet-like and watery.

Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.

Identity and classification

Type

Aroma chemical

Origin

Synthetic

Odour family

Aquatic / Fruity

Note position

Top to heart note

Physical form at room temperature

Liquid

Also known as

6-Methoxy-2,6-dimethylheptanal

CAS number

62439-41-2

Molecular formula

C10H20O2

Molecular weight

172.26 g/mol

IUPAC name

6-methoxy-2,6-dimethylheptanal

The CAS number, formula and molecular weight are taken from PubChem compound 112491, whose own record lists this CAS number; checked 19 October 2026.

Safety and compliance

Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory classify it (1,453 reports): H317 may cause an allergic skin reaction (96.4% of reports). 53 of the reports find it does not meet the hazard criteria. A skin sensitiser classification concerns handling the neat material and the dose in a finished product; the IFRA Standards, where they apply, set the limits. Unless it is harmonised, this is the notifiers' own classification, not a binding one.

This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.

Materials it works with

• Melonal

  Aroma chemical · Aquatic / Fruity — melon, watery, green, fresh

• Calone

  Aroma chemical · Aquatic / Metallic — marine, watermelon, ozonic, watery

• Floralozone

  Aroma chemical · Aquatic / Floral — ozonic, marine, floral, airy

• Hedione

  Aroma chemical · Floral / Citrus — jasmine, transparent, citrus, airy

Used in formulas and accords

Used in 2 published formulas

Methoxymelonal is an ingredient in 1 perfume formula and 1 accord in the Formula & Accord Library.

Community formulas

• Lychee Accord

  Community Formula · Accord · listed as “Aquaflor”

RUŌOD House Originals

Original compositions by RUŌOD House.

• Honeydew Static

  RUŌOD House Original · listed as “Methoxymelonal 10% DPG”, at 10% in DPG

Further reading

• Aquatic and Marine Notes in Perfumery

  The materials behind aquatic, marine and ozonic perfumes — Calone, watery aldehydes, dihydromyrcenol — and how to build and dose an aquatic accord.

• How to Make a Rain Accord: Petrichor and Geosmin

  Building the smell of rain: geosmin and a worked dilution chain to parts per million, watery and green materials, an illustrative accord and mitti attar.

Questions about Methoxymelonal

Sources

• PubChem — compound 112491, checked 19 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• Perflavory (The Good Scents Company) — 6-methoxy-2,6-dimethylheptanal (with Bedoukian's description) — odour database.
• The Good Scents Company — ozone odour category — odour database.
• Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 26 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.